Drawing apparatus for spinning short-stapled fibers.



PATENTED APR. 9, 1907.

. J. PERRIN. DRAWING: APPARATUS FOR SPINNING SHORT STAPLED FIBERS.

APPLICATION FILED APB.13,1905.

2 SHEETS-SHEET l.

PATENTED APR. 9', 1907.

. J. PERRIN. DRAWING APPARATUS FOR SPINNING SHORT STAPLED FIBERS.

APPLICATION IIIJD APR. 13,1905.

2 SHEETS-SHEET 2.

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I .Zhveulbr; (7556,5711 Erwin. 5'

JOSEPH PERRIN, OF COURS, FRANCE.

DRAWING APPARATUS FOR SPINNING SHORT-STAP LED FIBERS.

Specification of Letters Patent.

Application filed April 13, 1905. Serial No. 255,289.

Patented April 9, 1907.

To all whom it may concern:

Be it known that I, JosEPH PERRIN, a citizen of the French Republic,residing at Cours. in the Department of Rhone and Republic of France,have invented new and useful Improvements in Drawing Apparatus for SpingShort-stapled Fibers, of which the following is a specification. Myinventlon relates to an apparatus for drawing textile fibers; and theprincipal object of theinventionis to provide for drawing short as wellas long fibers by the same apparatus and to improve the quality of theyarn produced.

In the practice of cotton-spinning the yarn is gradually attenuated bbeing passed through a number of sets 0' drawing-rollers driven atdifferent s eeds. The s ace between the initial rol ers and the ollowinglines of rollers is generally based, however, on the maximum length ofthe fiber. This space is ordinarily too wide to draw out the shorterfiber contained in the sliver and put it inparallel. order.

In carrying out my invention I aim to draw out and arrange in parallelorder all of the fibers from the longest to the shortest, whichconstitute the sliver. I also aim to secure a much higher degree ofattenuation than can be attained by the means ordinarily em loyed, sothat further attenuation in the slu bing and roving frame becomesunneces- Iii the drawings, Figure 1 is a transverse sectional view ofdrawing-rollers embodying the principles of my invention. Fig. 2 is atop view of the same, some of the parts being removed. Fig. 3 is asectional view taken in a plane at the right of the rollers in Fig. 1looking toward the left. i

In carrying out my invention I make use of a porcupine-roller, the teethof which are arranged to enga 'i and comb out the fibers of the sliver.I a so make use of corrugated drawing-rolls, so related to the porcuineroller as to be capable of acting on the s ortest as well as thelongest fibers.

Referrin to the drawings, 1 indicates a stationary Irame in the form ofa solid cylindrical bar supported transversely inthe machine. I

2 indicate what I shall term subframes, of which there may be any numberarranged at spaced intervals along the bar 1. Each of roller 11of smalldiameter and flutings upon its surface which enter the V spaces betweenthe teeth of the porcu ineroller. 6 and 7 are calendering-rollers, avinga smooth surface and by which the sliver is engaged. All of theserollers 4, 5, 6, and 7 are sectional-that is to say, they extend betweenadjacent subframes 2, in which the sections are respectively journaled.In this way the various rollers virtually extend across the entire widthof the machine, although the sectional parts thereof are entirelyseparate from one another and are all journaled in the subframes 2, soas to give greater rigidity to the rollers in s ite of their smalldiameter. The rollers 4 and 6 have pinions 9 and 10, which mesh with thegear 8 of their particular section. In'this way the rollers 4, 5, 6, and7 may be of small diameter and delicate construction suitable to theshortest fibers of the sliver and at the same time have all requisitestrength and rigidity by virtue of the sectional construction withsupportingjournals spaced at short distances apart.

The drawing-rolls are indicated at 11, 12,

and 13 and may have roughened or corru gated surfaces for the'purpose ofon aging the sliver more firmly. I prefer to ma e the sup orted at eachof the subframes so as to have t e necessary stiffness and rigidity. Bythis construction the bight or point of drawing engagement of therollers 11 and 13 is in very close proximity to the teeth of the orcu'ine-roller 4, so that the shortest as we 1 as t e longest fibers aredrawn out and laid in parallel order.

The operation is as follows: The sliver shown at 16 enters the apparatusthrough the eye 15, supported by the rod 14, and thence passes throughthe calendering-rollers 6 and 7. By this meansj-the sliver is somewhatflattened and passes into engagement with the teeth of theporcupine-roller,

being pressed into such relation by the fluted feeding-roller 5. Thesliver finally enters and each having a gear, a air-of flutedfeeding-rolls also composed o alined independent sections of very smalldiameter and closely adjacent to said porcupine-roller, saidfeeding-rolls also having gears thereon, a pair of drawingrol ls closelyadjacent to said. orc'upine-roller and adapted to receive the s livertherefrom, said feeding-rolls and said drawing-rolls being disposed atopposite points on said porcupine-roller less than one hundred andeighty degrees a art whereby all ofthe rolls are very close y arrangedtogether, and a shaft havin gears thereon arranged to positively driveaIl of said rolls.

, In testimony whereof I have signed my name to this specification inthe presence ,of

two subscribing witnesses.

' JOSEPH PERRIN. Witnesses:

L. DEcHAnaNN, V. BLANO.

